An employee says "I cannot access it" — how do I find the missing permission?

A recurring complaint: "the button is not there" or "the page says I have no permission". Diagnosis takes two minutes once you know where to look.

Steps

1. Ask them for the exact screen name and what they are trying to do: just open it, add, edit, or delete? Each is a separate permission.
2. Open General Settings → Users and find the role assigned to them.
3. Open Roles and that role — image 1.
4. Type part of the screen name into the search box inside the permissions section and they filter down in front of you.
5. Tick the specific missing permission — view if they cannot see the screen, or create/edit/delete if they see it but find no buttons — then save.
6. Ask them to log out and back in.

Notes

• If the screen appears for nobody at all, this is not permissions but a disabled module — check Module Management first.
• If the screen appears but the list is empty, the cause is usually the branch on their account rather than a permission.
• Do not solve it by handing them the super-admin role; that is not a permission but a key to everything.
• If the role is shared by several employees, remember editing it affects them all; for an exception, create a role of their own or assign them a second role.